Home / 77,213.60-115,875.76-32,871.44

Finding the Fourth Proportional to 77,213.60, 115,875.76 and 32,871.44

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Solution

The fourth proportional to 77,213.60, 115,875.76 and 32,871.44 is: 49,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213.60 : 115,875.76 = 32,871.44 : x
  2. Step 2: Convert to fraction form
    77,213.60/115,875.76 = 32,871.44/x
  3. Step 3: Cross multiply
    77,213.60x = 115,875.76 × 32,871.44
  4. Step 4: Simplify right side
    77,213.60x = 3,809,003,092.29
  5. Step 5: Solve for x
    x = 3,809,003,092.29/77,213.60
  6. Step 6: Final answer
    x = 49,330.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.